Add "List" to stackage
Add "List" to stackage

As requested in https://github.com/yairchu/generator/issues/1
phaazon/stackage,christiaanb/stackage,massysett/stackage,ygale/stackage,peti/stackage,clinty/stackage,judah/stackage,alanz/stackage,iand675/stackage,Daniel-Diaz/stackage,creichert/stackage,brendanhay/stackage,int-index/stackage,athanclark/stackage,garetxe/stackage,mrkkrp/stackage,lwm/stackage,stackbuilders/stackage,fpco/stackage,asr/stackage,ethercrow/stackage,k0ral/stackage,simonmichael/stackage,DanielG/stackage,mstksg/stackage,GregorySchwartz/stackage,spencerjanssen/stackage,jonschoning/stackage,wereHamster/stackage,Shimuuar/stackage,phadej/stackage,fimad/stackage,mgajda/stackage,soenkehahn/stackage,michalkonecny/stackage